mon’backer Posted in M Best definition mon’backer C’mon back When a country boy has his girl doggy style. Doesn’t want to move just says ‘mon’backer and get on it. -or- In the army, anyone behind a vehicle in reverse who is directing traffic, “mon’backer.” How satisfied are you with the definition? Looking for mon’backer meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 38 times.